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혈장 삼투질 농도 변동에 따른 항이뇨 호르몬과 Aldosterone 분비조절 : 한국청년
이원정,주영은,구자훈,Lee, Won-Jung,Choo, Young-Eun,Koo, Ja-Hoon 대한생리학회 1987 대한생리학회지 Vol.21 No.2
A study was carried out to find out the relationship between arginine vasopressin (AVP) release and plasma osmolality in 15 young men (age: 21.4 yr). After an overnight fasting, wale. (20 ml/kg) was imbibed, and venous blood and urine samples were collected every 30 min for 90 min. then 5% saline was infused (0.06 ml/min/kg) for 120 min. AVP was extracted on Sep-Pak column and measured by radioimmunoassay. Under basal condition, plasma osmolality (pOsm), AVP (pAVP) and aldosterone (pAldo) levels were 286.5 mOsm/kg, 1.1 pg/ml, and 140 pg/ml, respectively. pAVP became undetectable during maximum water diuresis, and increased in response to hypertonic saline infusion. pAVP level began to increase when pOsm was above 280 mOsm/kg. Changes in urinary AVP excretion (uAVP) was parallel to pAVP levels. The fall in pAVP was followed by a decrease in uAVP, uOsm and an increase in free water clearance, while the later rise in pAVP was followed by an increase in uAVP, uOsm and a decrease in free water clearance. When pooling all data together, relationships between pAVP and pOsm, and uAVP and uOsm were best expressed by an exponential relationship (r=0.78, 0.86, respectively). pAldo level decreased to 71 pg/ml after water ingestion, and decreased further to 30 pg/ml 2 hr after 5% saline infusion. Even at the same pNa, pAldo level during dehydration state was significantly higher than during hydration state. Negative exponential relation (r=-0.59) was observed between pAldo and pNa. Response to change in body fluid volume was greater in aldosterone than in AVP release.
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이원정,황미경,김유근,Lee, Won-Jung,Hwang, Mi-Kyoung,Kim, Yoo-Keun 한국환경보건학회 2014 한국환경보건학회지 Vol.40 No.5
Objectives: This study seeks to evaluate the vulnerability assessment of the human health sector for $PM_{10}$, which is reflected in the regional characteristics and related disease mortality rates for $PM_{10}$ in Busan over the period of 2006-2010. Methods: According to the vulnerability concept suggested by the Intergovernmental Panel on Climate Change (IPCC), vulnerability to $PM_{10}$ is comprised of the categories of exposure, sensitivity, and adaptive capacity. The indexes of the exposure and sensitivity categories indicate positive effects, while the adaptive capacity index indicates a negative effect on vulnerability to $PM_{10}$. Variables of each category were standardized by the rescaling method, and each regional relative vulnerability was computed through the vulnerability index calculation formula. Results: The regions with a high exposure index are Jung-Gu (transportation region) and Saha-Gu (industrial region). Major factors determining the exposure index are the $PM_{10}$ concentration, days of $PM_{10}{\geq}50$, ${\mu}g/m^3$, and $PM_{10}$ emissions. The regions that show a high sensitivity index are urban and rural regions; these commonly have a high mortality rate for related disease and vulnerable populations. The regions that have a high adaptive capacity index are Jung-Gu, Gangseo-Gu, and Busanjin-Gu, all of which have a high level of economic/welfare/health care factors. The high-vulnerability synthesis of the exposure, sensitivity, and adaptive capacity indexes show that Dong-Gu and Seo-Gu have a risk for $PM_{10}$ potential effects and a low adaptive capacity. Conclusions: This study presents the vulnerability index to $PM_{10}$ through a relative comparison using quantitative evaluation to draw regional priorities. Therefore, it provides basic data to reflect environmental health influences in favor of an adaptive policy limiting damage to human health caused by vulnerability to $PM_{10}$.
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이원정,정순철,Lee, Won-Jeong,Jeong, Sun-Cheol 대한방사선과학회 2018 방사선기술과학 Vol.41 No.6
To compare of body composition and backmusclestrength between physical activity group (PAG) and non-physical activity group (Non-PAG). From Jun 14 to July 13 2018, 66 students were divided into PAG (male 20, female 13) and Non-PAG (male 18, female 15) from questionnaires for general characteristics and activity. All participants were measured body composition (Inbody 720, Biospace, Korea) and backmusclestrength (T.K.K. 5402, TAKEI, Japan) after obtaining written informed consent. Statistical analysis was performed by independent t-test and cross-sectional test using SPSS ver. 19.0 (USA). Sex and body mass index were not significant difference between two groups. Exercise was significant difference between PAG and Non-PAG(100% vs. 45.5%, p<0.001), especially running and push-up, sit-up(p<0.001). Body composition was no significant difference between PAG and Non-PAG (p>0.05). Backmusclestrength was significantly higher in PAG than that in N on-PAG (p<0.01). It is suggested that exercise affects to Backmusclestrength.
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환경보건적 요소가 도시 내 폭염 취약성 평가 결과에 미치는 영향 분석
이원정,강재은,김유근,Lee, Won-Jung,Kang, Jae-Eun,Kim, Yoo-Keun 한국환경보건학회 2013 한국환경보건학회지 Vol.39 No.6
Objectives: This analysis seeks to evaluate the impact of environmental health factors (EHF; e.g. hospital beds per capita, employees of medical institutions) on extreme-heat vulnerability assessment in Busan Metropolitan City during 2006-2010. Methods: According to the vulnerability concept suggested by the Intergovernmental Panel on Climate Change (IPCC), extreme-heat vulnerability is comprised of the categories of Exposure, Sensitivity, and Adaptive Capacity (including EHF). The indexes of the Exposure and Sensitivity categories indicate positive effects, while the Adaptive capacity index indicates a negative effect on extreme-heat vulnerability. Variables of each category were standardized by the re-scaling method, and then each regional relative vulnerability was computed with the vulnerability index calculation formula. Results: The extreme-heat vulnerability index (EVI) excepting EHF was much higher in urban areas than in suburban areas within the metropolitan area. When EHF was considered, the difference in the EVI between the two areas was reduced due to the increase of the Adaptive capacity index in urban areas. The low EVI in suburban areas was induced by a dominant effect of natural environmental factors (e.g. green area) within the Adaptive capacity category. Conclusions: To reduce the vulnerability to extreme heat in urban areas, which were more frequently exposed to extreme heat than others areas, public health and natural environments need to be improved in sensitive areas.
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이원정(Won-Jeong Lee),이모권(Mo-Kwon Lee),이중록(Lee Jung Rok),김하늘(Kim Ha Neul),유세종(Se-Jong Yoo),이배원(Bae-Won Lee),정순철(Sun-Cheol Jeong) 대한방사선과학회(구 대한방사선기술학회) 2021 방사선기술과학 Vol.44 No.3
The purpose of this study is to measure of growth and chlorophyl in barley exposed by X-ray. Barley seed was soaked 24h duration in water, then was classified into two group; pre-seed germination group (Pre-G) or post-seed germination group (Post-G). Also, divided as control subgroup and experimental subgroup(10Gy, 20Gy, 30Gy) in each group. Experimental subgroups were exposed by X-ray using linear accelerator (Clinac IS, VERIAN, USA). Expose condition was 6 MV X-ray, SSD 100 cm, 18×10 cm, 600 MU/min. Length was measured every day for 10 days and 10th day for weight. Chlorophyl was analyzed using spectrophotometer(uv-1800, shimadzu, japan) in l0th day. Data analysis was performed using SPSS ver 22.0(Chicago, IL, USA), ANOVA test (Dunnett_T3) between control subgroup and experimental subgroup in group and Independent T-test between Pre-G and Post-G in subgroup. In Pre-G, length of barley was significantly difference between control and 30Gy in 4th day (4.3 vs. 1.5, p= 0.011). Length of 30Gy was statistical difference with control(10th day; 14.4 vs. 6.3, p < 0.01), and was not in 10Gy or 20Gy in all day. In experimental subgroup, length was shorter as increasing radiation dose. In Post-G, length of barley was not difference statistically between control and experimental subgroup in first day, but more difference between two subgroup with increasing duration after exposing. Length of experimental subgroup was shorter significantly compared with control in 10th day, and no significant difference between experimental subgroup. Density of chlorophyl was increasing with increasing radiation dose in Pre-G and Post-G. Chlorophyl density of control was lower than 30Gy; 0.26ppm in Pre-G, 0.29ppm in Post-G). Growth and chlorophyl of barley was effected by X-ray. It is expected to be used as basic data for future radiobiological research.
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연구 논문(硏究 論文) : 해사중재에서 런던해사중재인협회(LMAA)와 대한상사중재원(KCAB)간의 소액,신속절차에 관한 비교분석
이원정 ( Won Jeong Lee ),김성룡 ( Sung Ryong Kim ) 한국해법학회 2012 韓國海法學會誌 Vol.34 No.1
본 연구의 목적은 LMAA SCP 규칙과 KCAB 중재규칙에 포함된 신속절차를 비교하여 각 규칙들의 특징을 분석하고 국내 해사중재를 활성화시킬 수 있는 방안을 모색하는데 있다. 특히, 신속절차에 대한 연구를 통해 해운업체의 소액분쟁 처리에도 도움을 주고자 한다. KCAB 신속절차와 비교하여 SCP 규칙의 특징적 장점은 다음과 같다. 첫째, 반대신청금액이 제한금액 초과시 일방당사자는 적용절차에 대해 기피할 수 있는 권리가 있으며, 사건의 복잡성을 고려하여 중재인의 재량으로 적절한 절차를 제시할 수도 있다. 둘째, 제출 서면의 글자 수를 제한하여 사건에 대해 간단·명료하게 작성하도록 하였고, 특별한 경우를 제외하고 구두심리를 배제하여 신속성을 도모하고 있다. 마지막으로, 단독중재인의 선정시 당사자가 합의를 못한 경우에만 사무국이 관여함으로써 당사자의 자율권을 최대한 보장하고 있다. The purpose of this study is to analyze the characteristics of KCAB rules and LMAA rules by comparing small·expedited procedures among them and to look for ways to improve domestic maritime arbitration. In particular, this paper is expected to help shipping company`s settlement faced with a small claim through expedited procedures. Compared with KCAB rules, LMAA SCP rules have distinguishing advantages as follows:First, the parties have the rights to challenge the use of procedure in case that the counterclaim amount exceeds the limited amount, and the appointing arbitrator is given to discretion whether or not to apply the same procedure considering the complexity of claim. Second, LMAA SCP rules have the provision as to the words limitation for submitting of simple and clear documents and promote the speediness by being no oral hearing except special circumstances. Finally, LMAA SCP rules fully guarantees the party`s self-regulation, because the secretary only intervenes in the appointment of sole arbitrator where the parties have not agreed on it.
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